How to use the ps command: 2-Minute Linux Tips

The video tutorial explains the use of the PS command to display information about running processes. It covers how to view processes in the current session, how to list all processes, and how to filter processes by command name or username. The tutorial also demonstrates how to count processes using the PS EF command piped to the WC command.

What does the PS command primarily display when used without any options?

• Processes running by a specific user

• Processes running in the current session

• All processes running on the system

• Processes that have been terminated

Which of the following fields is NOT displayed by the PS command?

• User ID

• Process ID

• Memory Usage

• Parent Process ID

How can you stop the PS command from displaying more information?

• Pressing Control+Z

• Pressing Control+C

• Closing the terminal

• Typing 'exit'

Which command can be used to filter processes by a specific command name?

• PS -L

• PS -A

• PS -U

• PS EF | grep

What command combination is used to count the number of processes running?

• PS -L | grep

• PS -A | total

• PS -C | count

• PS EF | wc